• Shadow mask is an important part of a color picture tube, while the design and manufacture of mask master is the key in making shadow mask.

    荫罩彩色显象管重要部件制造荫罩关键在于设计制造荫罩母版。

    youdao

  • Shadow mask is an important part of a color picture tube, while the design and manufacture of mask master is the key in making shadow mask.

    荫罩彩色显象管重要部件制造荫罩关键在于设计制造荫罩母版。

    youdao

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